diff --git a/src/mame/drivers/bfm_sc2.cpp b/src/mame/drivers/bfm_sc2.cpp
index eb423c68e54..76c759d21d2 100644
--- a/src/mame/drivers/bfm_sc2.cpp
+++ b/src/mame/drivers/bfm_sc2.cpp
@@ -2284,11 +2284,10 @@ void bfm_sc2_state::sc2_common_init(int decrypt)
 
 void bfm_sc2_state::adder2_common_init()
 {
-	UINT8 *pal;
-
-	pal = memregion("proms")->base();
-	if ( pal )
+	if (memregion("proms") != nullptr)
 	{
+		UINT8 *pal;
+		pal = memregion("proms")->base();
 		memcpy(m_key, pal, 8);
 	}
 }
diff --git a/src/mame/drivers/segas16b.cpp b/src/mame/drivers/segas16b.cpp
index 2a270be05ec..aa15bad1857 100644
--- a/src/mame/drivers/segas16b.cpp
+++ b/src/mame/drivers/segas16b.cpp
@@ -8242,9 +8242,11 @@ DRIVER_INIT_MEMBER(segas16b_state,sdi_5358_small)
 	DRIVER_INIT_CALL(generic_5358_small);
 	m_custom_io_r = read16_delegate(FUNC(segas16b_state::sdi_custom_io_r), this);
 
-	UINT8 *rom = memregion("maincpux")->base();
-	if (rom)
+	if (memregion("maincpux") != nullptr)
+	{
+		UINT8 *rom = memregion("maincpux")->base();
 		memcpy(m_decrypted_opcodes, rom, 0x30000);
+	}
 }